Live › vulnerability › CVE-2026-91658
Go to dashboardOracle Essbase 21.8.3.0.0 has a flaw in the Security component. A low-privileged user with HTTP access can take over Essbase, and the impact can reach other products in the environment (scope change, CVSS 9.9). Oracle fixed it in the October 2026 Critical Patch Update, which carries 38 Essbase fixes. No exploitation or public PoC is known.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| oracle essbase | vendor | = 21.8.3.0.0 | – |
| essbase | vendor | = 21.8.3.0.0 | – |
21.8.3.0.0 is the affected versionEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Vulnerability in Oracle Essbase (component: Security). The supported version that is affected is 21.8.3.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Essbase. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Essbase. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
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